package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {

//    动态条件查询购物车
    List<ShoppingCart> list(ShoppingCart shoppingCart);

    //根据id修改商品数量
    @Update("update shopping_cart set number=#{number} where id=#{id}")
    void updateNumberById(ShoppingCart shoppingCart);

//    插入购物车数据
    @Insert("insert into shopping_cart(name, image, user_id, dish_id, setmeal_id, dish_flavor, number, amount, create_time) " +
            "values (#{name},#{image},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{number},#{amount},#{createTime})" )
    void insert(ShoppingCart shoppingCart);

//    根据用户id清空购物车
    @Delete("delete from shopping_cart where user_id=#{userId}")
    void deleteByUserId(Long userId);

//    根据dishId查找购物车
    @Select("select * from shopping_cart where dish_id=#{dishId}")
    ShoppingCart getByDishId(Long dishId);

//    根据id删除购物车
    @Delete("delete from shopping_cart where id=#{id}")
    void deleteById(Long id);

//    向购物车插入多条数据
    void insertBatch(List<ShoppingCart> shoppingCartList);
}
